Subtract 45/25 from 27/42
1st number: 27/42, 2nd number: 1 20/25
27/42 - 45/25 is -81/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 25 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 42 × 25 = 1050,
27/42 = 27 × 25/42 × 25 = 675/1050 - Likewise, for the 2nd fraction, since 25 × 42 = 1050,
45/25 = 45 × 42/25 × 42 = 1890/1050 - Subtract the two like fractions:
675/1050 - 1890/1050 = 675 - 1890/1050 = -1215/1050 - After reducing the fraction, the answer is -81/70
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